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Which three are valid IPv6 interface addresses?()

A.FEC0:0:9000:0:9376:0:ABCD:EF12/128
B.FEC0:0:0:2000:10FF:9472:94FA:3490/128
C.FEC0:0:9500:0:59AB:BC12:94583:99CF/128
D.FEC0:FEC0:0:FEC0:1234:4321:7890:978/128
E.FEC0:0:9500:0:59AB:EEC12:ABCD:99CF/128

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